Patents by Inventor Takeyuki Tachiiwa
Takeyuki Tachiiwa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10883690Abstract: In a vehicle lamp, an optical axis adjustment screw for pivoting an optical member around a pivotal axis extending in a vehicle width direction is supported by a lamp body in a state of extending in a vertical direction on the rear side of the vehicle lamp with respect to pivotal axis. A protruding piece extending toward the rear of the vehicle lamp is formed in the optical member, and a groove portion to be screwed with a threaded portion of the optical axis adjustment screw is formed in the rear end surface of the protruding piece. The groove portion of the protruding piece and the threaded portion of the optical axis adjustment screw can be maintained in the screwed state.Type: GrantFiled: March 7, 2018Date of Patent: January 5, 2021Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Takeyuki Tachiiwa, Ryohei Takasu, Katsuhiko Okubo, Tatsuhiko Harada
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Publication number: 20200080700Abstract: In a vehicle lamp, an optical axis adjustment screw for pivoting an optical member around a pivotal axis extending in a vehicle width direction is supported by a lamp body in a state of extending in a vertical direction on the rear side of the vehicle lamp with respect to pivotal axis. A protruding piece extending toward the rear of the vehicle lamp is formed in the optical member, and a groove portion to be screwed with a threaded portion of the optical axis adjustment screw is formed in the rear end surface of the protruding piece. The groove portion of the protruding piece and the threaded portion of the optical axis adjustment screw can be maintained in the screwed state.Type: ApplicationFiled: March 7, 2018Publication date: March 12, 2020Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Takeyuki Tachiiwa, Ryohei Takasu, Katsuhiko Okubo, Tatsuhiko Harada
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Patent number: 10434928Abstract: An adjustment mechanism configured to adjust a reference position of an optical axis of a projection lens of a lens unit has a reference axis perpendicular to the optical axis and disposed in a plane which intersects with a focal point of the projection lens. The lens unit moves in an extension direction of the reference axis in accordance with rotation of a second screw. An acting point of a force to move the lens unit is disposed in a plane formed by the optical axis and the reference axis.Type: GrantFiled: April 10, 2018Date of Patent: October 8, 2019Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Hiroki Shibata, Takeyuki Tachiiwa, Kazutami Oishi, Satoru Yashiki, Takashi Inoue
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Patent number: 10099601Abstract: Provided is a vehicle lamp including an operation unit configured to operate an optical axis adjustment bevel gear provided in a lamp to be axially rotated. An axial rotation force transfer body of the operation unit includes an operation rod operated to be axially rotated, a driving rod engaged with the gear, and a wire interconnecting the operation rod and the driving rod in an axial rotation direction, and the driving rod is formed of a metal which is hard to rust. The driving rod is formed by a metal/injection/molding (MIM) technique. A support member extends between the driving rod and the lamp.Type: GrantFiled: January 26, 2017Date of Patent: October 16, 2018Assignee: Koito Manufacturing Co., Ltd.Inventor: Takeyuki Tachiiwa
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Patent number: 10077795Abstract: A nut member 10 facilitates an adjustment of the optical axis of a light, has excellent handleability, and includes a flange portion 11 to be supported by an attachment portion 6 disposed on the back side of a vehicle lamp member 1, and a leg portion 15 protruding to the front from the flange portion 11 and to be elastically deformed and fastened to the attachment portion 6, the lamp member 1 having an optical axis 100 to be adjusted by handling a screw 8 inserted into an insertion hole 22 formed over from an inside of the flange portion 11 to the leg portion 15. Before an insertion of the screw 8, a screw thread 14 of a female screw portion 13 has been formed on an inner surface of a flange insertion pass (insertion hole 22) to extend one round in a circumferential direction.Type: GrantFiled: October 18, 2016Date of Patent: September 18, 2018Assignees: KOITO MANUFACTURING CO., LTD., NIFCO INC.Inventors: Takeyuki Tachiiwa, Yuji Shibata
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Publication number: 20180229647Abstract: An adjustment mechanism configured to adjust a reference position of an optical axis of a projection lens of a lens unit has a reference axis perpendicular to the optical axis and disposed in a plane which intersects with a focal point of the projection lens. The lens unit moves in an extension direction of the reference axis in accordance with rotation of a second screw. An acting point of a force to move the lens unit is disposed in a plane formed by the optical axis and the reference axis.Type: ApplicationFiled: April 10, 2018Publication date: August 16, 2018Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Hiroki SHIBATA, Takeyuki TACHIIWA, Kazutami OISHI, Satoru YASHIKI, Takashi INOUE
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Patent number: 9970624Abstract: An adjustment mechanism configured to adjust a reference position of an optical axis of a projection lens of a lens unit has a reference axis perpendicular to the optical axis and disposed in a plane which intersects with a focal point of the projection lens. The lens unit moves in an extension direction of the reference axis in accordance with rotation of a second screw. An acting point of a force to move the lens unit is disposed in a plane formed by the optical axis and the reference axis.Type: GrantFiled: August 22, 2014Date of Patent: May 15, 2018Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Hiroki Shibata, Takeyuki Tachiiwa, Kazutami Oishi, Satoru Yashiki, Takashi Inoue
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Publication number: 20170225607Abstract: Provided is a vehicle lamp including an operation unit configured to operate an optical axis adjustment bevel gear provided in a lamp to be axially rotated. An axial rotation force transfer body of the operation unit includes an operation rod operated to be axially rotated, a driving rod engaged with the gear, and a wire interconnecting the operation rod and the driving rod in an axial rotation direction, and the driving rod is formed of a metal which is hard to rust. The driving rod is formed by a metal/injection/molding (MIM) technique. A support member extends between the driving rod and the lamp.Type: ApplicationFiled: January 26, 2017Publication date: August 10, 2017Inventor: Takeyuki Tachiiwa
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Publication number: 20170108027Abstract: To provide a nut member that facilitates an adjustment of the optical axis of a light and that has excellent handleablity. A nut member 10 includes a flange portion 11 to be supported by an attachment portion 6 disposed on the back side of a vehicle lamp member 1, and a leg portion 15 protruding to the front from the flange portion 11 and to be elastically deformed and fastened to the attachment portion 6, the lamp member 1 having an optical axis 100 to be adjusted by handling a screw 8 inserted into an insertion hole 22 formed over from an inside of the flange portion 11 to the leg portion 15. Before an insertion of the screw 8, a screw thread 14 of a female screw portion 13 has been formed on an inner surface of a flange insertion pass (insertion hole 22) to extend one round in a circumferential direction.Type: ApplicationFiled: October 18, 2016Publication date: April 20, 2017Applicants: KOITO MANUFACTURING CO., LTD., NIFCO INC.Inventors: Takeyuki TACHIIWA, Yuji SHIBATA
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Publication number: 20160200027Abstract: Provided is a mold for a resin molded part which defines a cavity with a plurality of submolds. The plurality of submolds includes a gate submold including a gate formed therein to inject a molten resin into the cavity; a gas injection submold including a gas injection port formed therein to inject a gas into the cavity; and a core pin submold including a core pin provided to be movable in a retreat direction from the cavity. The core pin submold is arranged such that the core pin faces the gas injection port.Type: ApplicationFiled: December 28, 2015Publication date: July 14, 2016Inventor: Takeyuki Tachiiwa
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Publication number: 20160201869Abstract: An adjustment mechanism configured to adjust a reference position of an optical axis of a projection lens of a lens unit has a reference axis perpendicular to the optical axis and disposed in a plane which intersects with a focal point of the projection lens. The lens unit moves in an extension direction of the reference axis in accordance with rotation of a second screw. An acting point of a force to move the lens unit is disposed in a plane formed by the optical axis and the reference axis.Type: ApplicationFiled: August 22, 2014Publication date: July 14, 2016Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Hiroki SHIBATA, Takeyuki TACHIIWA, Kazutami OISHI, Satoru YASHIKI, Takashi INOUE
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Patent number: 9157596Abstract: Disclosed is a vehicle lamp capable of improving a production efficiency, reducing a cost, and shortening a production line as compared to a case in which a dedicated mechanical equipment is used. The vehicle lamp includes an optical unit, a pivot member fixed to a bracket of the optical unit, a lamp body having a bearing insertion hole, and a bearing member which is fixed to the lamp body to be engageable with the pivot member. The pivot member and the bearing member are engaged with each other to constitute at least one supporting unit of an aiming mechanism. In addition, the optical unit is tiltably supported by the aiming mechanism and the bearing member is fixed to the lamp body by being inserted into the bearing insertion hole.Type: GrantFiled: December 3, 2013Date of Patent: October 13, 2015Assignee: KOITO MANUFACTURING CO. LTD.Inventors: Takeyuki Tachiiwa, Manabu Maeda, Kazutami Oishi, Yuki Takahashi
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Publication number: 20150176629Abstract: A nut member, which is used for an aiming mechanism of a lamp configured by an aiming screw 120 that is supported in a lamp body 101 so as to turn on its own axis and a nut member 1 that is supported in a bracket 109 of a reflector, includes a fitting portion 3 which is to be fitted in a fitting hole 110 provided in the bracket 109, and an internal thread portion 2 which is to be screwed on to an external thread portion 121 of the aiming screw 120, and an introducing portion 4 which guides the aiming screw 120, wherein the fitting portion 3 and the internal thread portion 2 are formed in different axial positions on the nut member 1.Type: ApplicationFiled: July 16, 2013Publication date: June 25, 2015Applicant: KOITO MANUFACTURING CO., LTD.Inventor: Takeyuki Tachiiwa
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Patent number: 8944652Abstract: An optical axis adjusting screw (15) is provided with a shaft portion (16), a gear portion (17), and an elastic engagement portion (18). The elastic engagement portion (18) is provided with a base end (18BE) and a free end (18FE). The base end (18BE) is fixed to the shaft portion (16). A distal end face (18a) is formed at the free end (18FE) and is substantially perpendicular to an axial direction of the shaft portion (16). There is no parting line on the distal end face (18a).Type: GrantFiled: February 7, 2011Date of Patent: February 3, 2015Assignee: Koito Manufacturing Co., Ltd.Inventor: Takeyuki Tachiiwa
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Publication number: 20140169009Abstract: Disclosed is a vehicle lamp capable of improving a production efficiency, reducing a cost, and shortening a production line as compared to a case in which a dedicated mechanical equipment is used. The vehicle lamp includes an optical unit, a pivot member fixed to a bracket of the optical unit, a lamp body having a bearing insertion hole, and a bearing member which is fixed to the lamp body to be engageable with the pivot member. The pivot member and the bearing member are engaged with each other to constitute at least one supporting unit of an aiming mechanism. In addition, the optical unit is tiltably supported by the aiming mechanism and the bearing member is fixed to the lamp body by being inserted into the bearing insertion hole.Type: ApplicationFiled: December 3, 2013Publication date: June 19, 2014Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Takeyuki TACHIIWA, Manabu MAEDA, Kazutami OISHI, Yuki TAKAHASHI
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Publication number: 20110192243Abstract: An optical axis adjusting screw (15) is provided with a shaft portion (16), a gear portion (17), and an elastic engagement portion (18). The elastic engagement portion (18) is provided with a base end (18BE) and a free end (18FE). The base end (18BE) is fixed to the shaft portion (16). A distal end face (18a) is formed at the free end (18FE) and is substantially perpendicular to an axial direction of the shaft portion (16). There is no parting line on the distal end face (18a).Type: ApplicationFiled: February 7, 2011Publication date: August 11, 2011Applicant: KOITO MANUFACTURING CO., LTD.Inventor: Takeyuki Tachiiwa
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Patent number: 7452154Abstract: A universal joint component is used for connecting two members, such as a reflector and a lamp body. The universal joint component includes a shaft, an installation section formed on one end of the shaft, and a spherical head formed on the other end of the shaft. The spherical head includes a joint base, a top end, and at least one gap formed on a side of the spherical head between the top end and the joining base. The gap is formed of a groove or through hole so as to straddle a phantom line substantially passing through a center of the spherical head and perpendicularly intersecting a shaft axis of the shaft. Split head sections are defined by the at least one gap so that the split head sections flexibly deform when the spherical head is inserted into a spherical socket.Type: GrantFiled: February 22, 2005Date of Patent: November 18, 2008Assignees: NIFCO Inc., Koito Manufacturing Co., Ltd.Inventors: Tomoaki Aoshima, Nobuhiro Hara, Takeyuki Tachiiwa
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Patent number: 7207704Abstract: A vehicular lamp having a distance adjustment section that adjusts the distance between the lamp body and the reflector and includes an adjustment shaft, a gear member, and a receiving element. The adjustment shaft has a spherical end; the gear member includes a shaft portion that has the adjustment shaft therein, elastic pawls protruding from the shaft portion, and empty spaces defined by the elastic pawls to allow flexure of the elastic pawls toward the shaft portion; and the receiving element is formed on the back surface of the reflector. The gear member having the adjustment shaft is rotatably inserted in an insertion hole of the lamp body, the elastic pawls are engaged with the edge of the insertion hole to prevent the gear member from slipping out; and the spherical end of the adjustment shaft is engaged with the receiving element and prevented from rotating.Type: GrantFiled: November 2, 2005Date of Patent: April 24, 2007Assignee: Koito Manufacturing Co., Ltd.Inventors: Takeyuki Tachiiwa, Manbu Maeda, Koichi Nakamura, Fujio Onuki
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Publication number: 20060092653Abstract: A vehicular lamp having a distance adjustment section that adjusts the distance between the lamp body and the reflector and includes an adjustment shaft, a gear member, and a receiving element. The adjustment shaft has a spherical end; the gear member includes a shaft portion that has the adjustment shaft therein, elastic pawls protruding from the shaft portion, and empty spaces defined by the elastic pawls to allow flexure of the elastic pawls toward the shaft portion; and the receiving element is formed on the back surface of the reflector. The gear member having the adjustment shaft is rotatably inserted in an insertion hole of the lamp body, the elastic pawls are engaged with the edge of the insertion hole to prevent the gear member from slipping out; and the spherical end of the adjustment shaft is engaged with the receiving element and prevented from rotating.Type: ApplicationFiled: November 2, 2005Publication date: May 4, 2006Inventors: Takeyuki Tachiiwa, Manabu Maeda, Koichi Nakamura, Fujio Onuki
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Publication number: 20050191119Abstract: A universal joint component is used for connecting two members, such as a reflector and a lamp body. The universal joint component includes a shaft, an installation section formed on one end of the shaft, and a spherical head formed on the other end of the shaft. The spherical head includes a joint base, a top end, and at least one gap formed on a side of the spherical head between the top end and the joining base. The gap is formed of a groove or through hole so as to straddle a phantom line substantially passing through a center of the spherical head and perpendicularly intersecting a shaft axis of the shaft. Split head sections are defined by the at least one gap so that the split head sections flexibly deform when the spherical head is inserted into a spherical socket.Type: ApplicationFiled: February 22, 2005Publication date: September 1, 2005Applicants: NIFCO INC., KOITO MANUFACTURING CO., LTD.Inventors: Tomoaki Aoshima, Nobuhiro Hara, Takeyuki Tachiiwa